When the H. pylori reaches 100 BPM, it will become positive, and the results of the H. pylori test are negative and positive, negative indicates that the stomach environment is healthy and is not violated by H. pylori, while positive indicates that the stomach has been infected by H. pylori, and the disease needs to be treated as soon as possible. The carbon 14 test is the most common test for H. pylori, and is negative when the patient’s value is within 100 BPM. Once the value exceeds 100 BPM, it will be positive. After the stomach is infected by H. pylori, most of the patients will have symptoms of bloating, indigestion and gastric dysfunction. This is mainly due to the metabolites released by H. pylori, which invade the mucous membrane of the stomach wall and require treatment with antibiotic drugs.